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acuarica merged 3 commits into from
May 6, 2025
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docs: document forge-std version requirements #290

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acuarica May 6, 2025
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acuarica May 6, 2025
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acuarica May 6, 2025
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20 changes: 20 additions & 0 deletions FAQ.md
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Expand Up @@ -26,6 +26,26 @@ That is why when trying to get the code, for example using `cast code --rpc-url
address of the HTS System Contract, you get `0xfe`.
That leads to the error `EvmError: InvalidFEOpcode` mentioned in the question.

### Why am I getting error "`Member "keyExistsJson" not found or not visible`" when compiling my project?

If you get the following error when compiling your project

```console
$ forge build
[...]
Error: Compiler run failed:
Error (9582): Member "keyExistsJson" not found or not visible after argument-dependent lookup in contract Vm.
```

it is because your `forge-std` dependency is outdated.
You can [update](https://book.getfoundry.sh/reference/forge/forge-update) `forge-std` with

```sh
forge update lib/forge-std
```

See [_§ Requirements_](./README.md#requirements) for the full list of requirements needed to compile your project.

## Hardhat

### What causes the error `ProviderError: No known hardfork for execution`
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11 changes: 10 additions & 1 deletion README.md
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Expand Up @@ -46,6 +46,12 @@ First, install our library in your Foundry project
forge install hashgraph/hedera-forking
```

#### Requirements

Ensure your project meets the following requirements

- `forge-std` [`>= v1.8.0`](https://github.com/foundry-rs/forge-std/releases/tag/v1.8.0)

### Set up

To use this library in your tests, you need to enable [`ffi`](https://book.getfoundry.sh/cheatcodes/ffi).
Expand Down Expand Up @@ -183,7 +189,6 @@ Foundry allows you to run Solidity Scripts to interact with a remote network usi
See [_Scripting with Solidity_](https://book.getfoundry.sh/guides/scripting-with-solidity) for more information on the topic.

To enable Foundry Scripts to work with HTS, you can use `htsSetup()` as described in the previous section.
You can include
For example

```solidity examples/foundry-hts/script/CreateToken.s.sol
Expand Down Expand Up @@ -252,6 +257,10 @@ previewnet = "https://previewnet.hashio.io/api"
localnode = "http://localhost:7546"
```

> [!IMPORTANT]
> Make sure to include the `--skip-simulation` flag when running `forge script`.
> Otherwise you will get [`EvmError: InvalidFEOpcode`](./FAQ.md#what-causes-the-error-evmerror-invalidfeopcode).

## Hardhat plugin

We provide a Hardhat plugin that enables fork testing when using HTS Tokens.
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